RCE in Cudy Tr1200
CVE-2026-4537
A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function action_ipsec_conn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading the affected component is advised. The vendor explains, that "some other customer has reported this to us before. And we have fixed this."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.021 (81.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.094 · newest: 0.021 · change: -0.073
Affected products
- Cudy Tr1200 — versions R46-2.4.15-20250721-164017
Weakness classification (CWE)
References
- vuldb.com/vuln/352325 (technical-description, vdb-entry)
- vuldb.com/vuln/352325/cti (signature, permissions-required)
- vuldb.com/submit/774447 (third-party-advisory)
- github.com/qazmn/my_cve/blob/main/cudy_cve/Cudy_TR1200_Command_Injection.md (exploit)
Frequently asked questions
- What is CVE-2026-4537?
- CVE-2026-4537 is a medium-severity vulnerability in Cudy Tr1200, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-03-22.
- How severe is CVE-2026-4537?
- Medium severity. CVSS v3 base score is 4.7 out of 10.